Bug 196123 - Backports Compatibility with RHEL 6.7-6.9
Summary: Backports Compatibility with RHEL 6.7-6.9
Status: CLOSED WILL_NOT_FIX
Alias: None
Product: Backports project
Classification: Unclassified
Component: Backports (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: Backports Project Mailing List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-06-19 15:00 UTC by Jordan Wine
Modified: 2019-11-19 08:57 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.32-573
Subsystem:
Regression: No
Bisected commit-id:

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Description Jordan Wine 2017-06-19 15:00:50 UTC 
Hello,

My name is Jordan Wine. I am a Sr Systems Analyst with a large transportation engineering firm and have been trying to install backports-4.2.6-1 ath10k drivers on Red Hat Enterprise Linux 6.7. I have exhausted every resource on google, stack exchange, personal friends and Red Hat Kernel support team and at this point believe there is a compatibility issue with 6.7-6.9 version of RHEL.

Let me also add the disclaimer that I am a kernel noob and rely heavily on the knowledge available in the community. I would be happy to be told backports has no such compatibility issue and there is simple configuration issues on my system preventing the install.

The issue appears to be in addition to certain header files (autoconf.h and utsrelease.h) not being generated, the header file moduleparams.h included in backports calls the function __kernel_param_lock which is defined in later versions of kernel headers but not in the kernel shipped with RHEL 6.7. These errors occur during the “make” step of installation.  This occurred both on kernel-2.6.32-573.el6.x86_64 and on kernel-2.6.32-696.3.1.el6.x86_64 (the latter is shipped with RHEL 6.9).

See below for an output of the errors as well as general system information.

Very Respectfully,

-Jordan Wine




[root@pars-lms backports-4.2.6-1]# make defconfig-ath10k
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c -o conf.o conf.c
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c -o zconf.tab.o zconf.tab.c
cc   conf.o zconf.tab.o   -o conf
boolean symbol HWMON tested for 'm'? test forced to 'n'
boolean symbol HWMON tested for 'm'? test forced to 'n'
#
# configuration written to .config
#

[root@pars-lms backports-4.2.6-1]# make
make[5]: `conf' is up to date.
boolean symbol HWMON tested for 'm'? test forced to 'n'
boolean symbol HWMON tested for 'm'? test forced to 'n'
#
# configuration written to .config
#
Building backport-include/backport/autoconf.h ... done.
  CC [M]  /root/backports-4.2.6-1/compat/main.o
In file included from <command-line>:0:
/root/backports-4.2.6-1/backport-include/backport/backport.h:3:32: error: generated/autoconf.h: No such file or directory
In file included from /root/backports-4.2.6-1/backport-include/linux/bitops.h:5,
                 from include/linux/kernel.h:15,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/generated/utsrelease.h:3:39: error: generated/utsrelease.h: No such file or directory
In file included from /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                 from include/linux/kernel.h:20,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/dynamic_debug.h:117:1: warning: "dynamic_hex_dump" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/printk.h:12:1: warning: this is the location of the previous definition
In file included from include/linux/kernel.h:20,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:22:1: warning: "DEFINE_DYNAMIC_DEBUG_METADATA" redefined
In file included from /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                 from include/linux/kernel.h:20,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/dynamic_debug.h:80:1: warning: this is the location of the previous definition
In file included from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/kernel.h:441:1: warning: "printk_once" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/printk.h:40:1: warning: this is the location of the previous definition
In file included from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/kernel.h:670:1: warning: "printk_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/printk.h:56:1: warning: this is the location of the previous definition
In file included from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/kernel.h:694:1: warning: "pr_warn_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/printk.h:92:1: warning: this is the location of the previous definition
In file included from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
include/linux/kernel.h:705:1: warning: "pr_debug_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/printk.h:122:1: warning: this is the location of the previous definition
In file included from include/linux/module.h:17,
                 from /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                 from /root/backports-4.2.6-1/compat/main.c:1:
/root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function ‘backport_kernel_param_lock’:
/root/backports-4.2.6-1/backport-include/linux/moduleparam.h:9: error: implicit declaration of function ‘__kernel_param_lock’
/root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function ‘backport_kernel_param_unlock’:
/root/backports-4.2.6-1/backport-include/linux/moduleparam.h:14: error: implicit declaration of function ‘__kernel_param_unlock’
make[6]: *** [/root/backports-4.2.6-1/compat/main.o] Error 1
make[5]: *** [/root/backports-4.2.6-1/compat] Error 2
make[4]: *** [_module_/root/backports-4.2.6-1] Error 2
make[3]: *** [modules] Error 2
make[2]: *** [modules] Error 2
make[1]: *** [modules] Error 2
make: *** [default] Error 2

[root@pars-lms backports-4.2.6-1]# uname -a
Linux pars-lms 2.6.32-696.3.1.el6.x86_64 #1 SMP Thu Apr 20 11:30:02 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux

[root@pars-lms backports-4.2.6-1]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.7 (Santiago)

[root@pars-lms backports-4.2.6-1]# rpm -qa |grep kernel
dracut-kernel-004-409.el6_8.2.noarch
kernel-headers-2.6.32-696.3.1.el6.x86_64
abrt-addon-kerneloops-2.0.8-34.el6.x86_64
kernel-devel-2.6.32-696.3.1.el6.x86_64
kernel-2.6.32-573.el6.x86_64
kernel-firmware-2.6.32-696.3.1.el6.noarch
kernel-devel-2.6.32-573.el6.x86_64
kernel-2.6.32-696.3.1.el6.x86_64
libreport-plugin-kerneloops-2.0.9-24.el6.x86_64

[root@pars-lms backports-4.2.6-1]# which cc
/usr/bin/cc

[root@pars-lms backports-4.2.6-1]# ll /usr/bin/cc
lrwxrwxrwx. 1 root root 12 Jun 15 06:24 /usr/bin/cc -> /usr/bin/gcc

[root@pars-lms backports-4.2.6-1]# gcc --version
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[root@pars-lms backports-4.2.6-1]# make --version
GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for x86_64-redhat-linux-gnu
Comment 1 Dan.Kephart 2017-06-19 16:59:02 UTC 
The 3.14 release of backports was the last release with any 2.6 kernel support.

Dan

On 6/19/17, 11:00 AM, "backports-owner@vger.kernel.org on behalf of bugzilla-daemon@bugzilla.kernel.org" <backports-owner@vger.kernel.org on behalf of bugzilla-daemon@bugzilla.kernel.org> wrote:

    https://bugzilla.kernel.org/show_bug.cgi?id=196123
    
                Bug ID: 196123
               Summary: Backports Compatibility with RHEL 6.7-6.9
               Product: Backports project
               Version: unspecified
        Kernel Version: 2.6.32-573
              Hardware: x86-64
                    OS: Linux
                  Tree: Mainline
                Status: NEW
              Severity: normal
              Priority: P1
             Component: Backports
              Assignee: backports@vger.kernel.org
              Reporter: jordan.wine@parsons.com
            Regression: No
    
    Hello,
    
    My name is Jordan Wine. I am a Sr Systems Analyst with a large transportation
    engineering firm and have been trying to install backports-4.2.6-1 ath10k
    drivers on Red Hat Enterprise Linux 6.7. I have exhausted every resource on
    google, stack exchange, personal friends and Red Hat Kernel support team and at
    this point believe there is a compatibility issue with 6.7-6.9 version of RHEL.
    
    Let me also add the disclaimer that I am a kernel noob and rely heavily on the
    knowledge available in the community. I would be happy to be told backports has
    no such compatibility issue and there is simple configuration issues on my
    system preventing the install.
    
    The issue appears to be in addition to certain header files (autoconf.h and
    utsrelease.h) not being generated, the header file moduleparams.h included in
    backports calls the function __kernel_param_lock which is defined in later
    versions of kernel headers but not in the kernel shipped with RHEL 6.7. These
    errors occur during the “make” step of installation.  This occurred both on
    kernel-2.6.32-573.el6.x86_64 and on kernel-2.6.32-696.3.1.el6.x86_64 (the
    latter is shipped with RHEL 6.9).
    
    See below for an output of the errors as well as general system information.
    
    Very Respectfully,
    
    -Jordan Wine
    
    
    
    
    [root@pars-lms backports-4.2.6-1]# make defconfig-ath10k
    cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c
    -o conf.o conf.c
    cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c
    -o zconf.tab.o zconf.tab.c
    cc   conf.o zconf.tab.o   -o conf
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    #
    # configuration written to .config
    #
    
    [root@pars-lms backports-4.2.6-1]# make
    make[5]: `conf' is up to date.
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    #
    # configuration written to .config
    #
    Building backport-include/backport/autoconf.h ... done.
      CC [M]  /root/backports-4.2.6-1/compat/main.o
    In file included from <command-line>:0:
    /root/backports-4.2.6-1/backport-include/backport/backport.h:3:32: error:
    generated/autoconf.h: No such file or directory
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/bitops.h:5,
                     from include/linux/kernel.h:15,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/generated/utsrelease.h:3:39: error:
    generated/utsrelease.h: No such file or directory
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                     from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/dynamic_debug.h:117:1: warning: "dynamic_hex_dump" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                    from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:12:1: warning: this is
    the location of the previous definition
    In file included from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:22:1: warning:
    "DEFINE_DYNAMIC_DEBUG_METADATA" redefined
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                     from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/dynamic_debug.h:80:1: warning: this is the location of the
    previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:441:1: warning: "printk_once" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:40:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:670:1: warning: "printk_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:56:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:694:1: warning: "pr_warn_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:92:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:705:1: warning: "pr_debug_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:122:1: warning: this is
    the location of the previous definition
    In file included from include/linux/module.h:17,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function
    ‘backport_kernel_param_lock’:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h:9: error: implicit
    declaration of function ‘__kernel_param_lock’
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function
    ‘backport_kernel_param_unlock’:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h:14: error:
    implicit declaration of function ‘__kernel_param_unlock’
    make[6]: *** [/root/backports-4.2.6-1/compat/main.o] Error 1
    make[5]: *** [/root/backports-4.2.6-1/compat] Error 2
    make[4]: *** [_module_/root/backports-4.2.6-1] Error 2
    make[3]: *** [modules] Error 2
    make[2]: *** [modules] Error 2
    make[1]: *** [modules] Error 2
    make: *** [default] Error 2
    
    [root@pars-lms backports-4.2.6-1]# uname -a
    Linux pars-lms 2.6.32-696.3.1.el6.x86_64 #1 SMP Thu Apr 20 11:30:02 EDT 2017
    x86_64 x86_64 x86_64 GNU/Linux
    
    [root@pars-lms backports-4.2.6-1]# cat /etc/redhat-release
    Red Hat Enterprise Linux Server release 6.7 (Santiago)
    
    [root@pars-lms backports-4.2.6-1]# rpm -qa |grep kernel
    dracut-kernel-004-409.el6_8.2.noarch
    kernel-headers-2.6.32-696.3.1.el6.x86_64
    abrt-addon-kerneloops-2.0.8-34.el6.x86_64
    kernel-devel-2.6.32-696.3.1.el6.x86_64
    kernel-2.6.32-573.el6.x86_64
    kernel-firmware-2.6.32-696.3.1.el6.noarch
    kernel-devel-2.6.32-573.el6.x86_64
    kernel-2.6.32-696.3.1.el6.x86_64
    libreport-plugin-kerneloops-2.0.9-24.el6.x86_64
    
    [root@pars-lms backports-4.2.6-1]# which cc
    /usr/bin/cc
    
    [root@pars-lms backports-4.2.6-1]# ll /usr/bin/cc
    lrwxrwxrwx. 1 root root 12 Jun 15 06:24 /usr/bin/cc -> /usr/bin/gcc
    
    [root@pars-lms backports-4.2.6-1]# gcc --version
    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
    Copyright (C) 2010 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    
    [root@pars-lms backports-4.2.6-1]# make --version
    GNU Make 3.81
    Copyright (C) 2006  Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.
    There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
    PARTICULAR PURPOSE.
    
    This program built for x86_64-redhat-linux-gnu
    
    -- 
    You are receiving this mail because:
    You are the assignee for the bug.--
    To unsubscribe from this list: send the line "unsubscribe backports" in
Comment 2 Dan.Kephart 2017-06-19 17:23:50 UTC 
Looks like my reply bounced due to the mailing address being wrong.  So sending this again to the correct mailing list address.  Sorry for the repeat if it actually went through.

The 3.14 release of backports was the last release with any 2.6 kernel support.

Dan

On 6/19/17, 11:00 AM, "backports-owner@vger.kernel.org on behalf of bugzilla-daemon@bugzilla.kernel.org" <backports-owner@vger.kernel.org on behalf of bugzilla-daemon@bugzilla.kernel.org> wrote:

    https://bugzilla.kernel.org/show_bug.cgi?id=196123
    
                Bug ID: 196123
               Summary: Backports Compatibility with RHEL 6.7-6.9
               Product: Backports project
               Version: unspecified
        Kernel Version: 2.6.32-573
              Hardware: x86-64
                    OS: Linux
                  Tree: Mainline
                Status: NEW
              Severity: normal
              Priority: P1
             Component: Backports
              Assignee: backports@vger.kernel.org
              Reporter: jordan.wine@parsons.com
            Regression: No
    
    Hello,
    
    My name is Jordan Wine. I am a Sr Systems Analyst with a large transportation
    engineering firm and have been trying to install backports-4.2.6-1 ath10k
    drivers on Red Hat Enterprise Linux 6.7. I have exhausted every resource on
    google, stack exchange, personal friends and Red Hat Kernel support team and at
    this point believe there is a compatibility issue with 6.7-6.9 version of RHEL.
    
    Let me also add the disclaimer that I am a kernel noob and rely heavily on the
    knowledge available in the community. I would be happy to be told backports has
    no such compatibility issue and there is simple configuration issues on my
    system preventing the install.
    
    The issue appears to be in addition to certain header files (autoconf.h and
    utsrelease.h) not being generated, the header file moduleparams.h included in
    backports calls the function __kernel_param_lock which is defined in later
    versions of kernel headers but not in the kernel shipped with RHEL 6.7. These
    errors occur during the “make” step of installation.  This occurred both on
    kernel-2.6.32-573.el6.x86_64 and on kernel-2.6.32-696.3.1.el6.x86_64 (the
    latter is shipped with RHEL 6.9).
    
    See below for an output of the errors as well as general system information.
    
    Very Respectfully,
    
    -Jordan Wine
    
    
    
    
    [root@pars-lms backports-4.2.6-1]# make defconfig-ath10k
    cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c
    -o conf.o conf.c
    cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c
    -o zconf.tab.o zconf.tab.c
    cc   conf.o zconf.tab.o   -o conf
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    #
    # configuration written to .config
    #
    
    [root@pars-lms backports-4.2.6-1]# make
    make[5]: `conf' is up to date.
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    boolean symbol HWMON tested for 'm'? test forced to 'n'
    #
    # configuration written to .config
    #
    Building backport-include/backport/autoconf.h ... done.
      CC [M]  /root/backports-4.2.6-1/compat/main.o
    In file included from <command-line>:0:
    /root/backports-4.2.6-1/backport-include/backport/backport.h:3:32: error:
    generated/autoconf.h: No such file or directory
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/bitops.h:5,
                     from include/linux/kernel.h:15,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/generated/utsrelease.h:3:39: error:
    generated/utsrelease.h: No such file or directory
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                     from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/dynamic_debug.h:117:1: warning: "dynamic_hex_dump" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                    from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:12:1: warning: this is
    the location of the previous definition
    In file included from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:22:1: warning:
    "DEFINE_DYNAMIC_DEBUG_METADATA" redefined
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/dynamic_debug.h:4,
                     from include/linux/kernel.h:20,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/dynamic_debug.h:80:1: warning: this is the location of the
    previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:441:1: warning: "printk_once" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:40:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:670:1: warning: "printk_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:56:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:694:1: warning: "pr_warn_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:92:1: warning: this is
    the location of the previous definition
    In file included from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    include/linux/kernel.h:705:1: warning: "pr_debug_ratelimited" redefined
    In file included from include/linux/kernel.h:18,
                     from
    /root/backports-4.2.6-1/backport-include/linux/kernel.h:3,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                     from
    /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                     from include/linux/prefetch.h:14,
                     from include/linux/list.h:7,
                     from /root/backports-4.2.6-1/backport-include/linux/list.h:3,
                     from include/linux/module.h:9,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/printk.h:122:1: warning: this is
    the location of the previous definition
    In file included from include/linux/module.h:17,
                     from
    /root/backports-4.2.6-1/backport-include/linux/module.h:3,
                     from /root/backports-4.2.6-1/compat/main.c:1:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function
    ‘backport_kernel_param_lock’:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h:9: error: implicit
    declaration of function ‘__kernel_param_lock’
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h: In function
    ‘backport_kernel_param_unlock’:
    /root/backports-4.2.6-1/backport-include/linux/moduleparam.h:14: error:
    implicit declaration of function ‘__kernel_param_unlock’
    make[6]: *** [/root/backports-4.2.6-1/compat/main.o] Error 1
    make[5]: *** [/root/backports-4.2.6-1/compat] Error 2
    make[4]: *** [_module_/root/backports-4.2.6-1] Error 2
    make[3]: *** [modules] Error 2
    make[2]: *** [modules] Error 2
    make[1]: *** [modules] Error 2
    make: *** [default] Error 2
    
    [root@pars-lms backports-4.2.6-1]# uname -a
    Linux pars-lms 2.6.32-696.3.1.el6.x86_64 #1 SMP Thu Apr 20 11:30:02 EDT 2017
    x86_64 x86_64 x86_64 GNU/Linux
    
    [root@pars-lms backports-4.2.6-1]# cat /etc/redhat-release
    Red Hat Enterprise Linux Server release 6.7 (Santiago)
    
    [root@pars-lms backports-4.2.6-1]# rpm -qa |grep kernel
    dracut-kernel-004-409.el6_8.2.noarch
    kernel-headers-2.6.32-696.3.1.el6.x86_64
    abrt-addon-kerneloops-2.0.8-34.el6.x86_64
    kernel-devel-2.6.32-696.3.1.el6.x86_64
    kernel-2.6.32-573.el6.x86_64
    kernel-firmware-2.6.32-696.3.1.el6.noarch
    kernel-devel-2.6.32-573.el6.x86_64
    kernel-2.6.32-696.3.1.el6.x86_64
    libreport-plugin-kerneloops-2.0.9-24.el6.x86_64
    
    [root@pars-lms backports-4.2.6-1]# which cc
    /usr/bin/cc
    
    [root@pars-lms backports-4.2.6-1]# ll /usr/bin/cc
    lrwxrwxrwx. 1 root root 12 Jun 15 06:24 /usr/bin/cc -> /usr/bin/gcc
    
    [root@pars-lms backports-4.2.6-1]# gcc --version
    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
    Copyright (C) 2010 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    
    [root@pars-lms backports-4.2.6-1]# make --version
    GNU Make 3.81
    Copyright (C) 2006  Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.
    There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
    PARTICULAR PURPOSE.
    
    This program built for x86_64-redhat-linux-gnu
    
    -- 
    You are receiving this mail because:
    You are the assignee for the bug.--
    To unsubscribe from this list: send the line "unsubscribe backports" in
Comment 3 Jordan Wine 2017-06-19 17:26:41 UTC 
Ah, thank you Dan! Perhaps there was some documentation I missed indicating supported versions so I apologize.


Unfortunately, even after an attempt with backports-3.14.22-1, I still get a lot of redefinition warnings and errors. I'm digging into it more at the moment and will reply once I have more information.



[root@pars-lms backports-3.14.22-1]# make clean
  CLEAN   /root/backports-3.14.22-1/.tmp_versions
[root@pars-lms backports-3.14.22-1]# make defconfig-ath10k
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c -o conf.o conf.c
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer   -c -o zconf.tab.o zconf.tab.c
cc   conf.o zconf.tab.o   -o conf
boolean symbol HWMON tested for 'm'? test forced to 'n'
boolean symbol HWMON tested for 'm'? test forced to 'n'
#
# configuration written to .config
#
[root@pars-lms backports-3.14.22-1]# make
make[5]: `conf' is up to date.
boolean symbol HWMON tested for 'm'? test forced to 'n'
boolean symbol HWMON tested for 'm'? test forced to 'n'
#
# configuration written to .config
#
Building backport-include/backport/autoconf.h ... done.
  CC [M]  /root/backports-3.14.22-1/compat/main.o
In file included from /root/backports-3.14.22-1/backport-include/linux/dynamic_debug.h:5,
                 from include/linux/kernel.h:20,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/dynamic_debug.h:117:1: warning: "dynamic_hex_dump" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/printk.h:17:1: warning: this is the location of the previous definition
In file included from include/linux/kernel.h:20,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/dynamic_debug.h:24:1: warning: "DEFINE_DYNAMIC_DEBUG_METADATA" redefined
In file included from /root/backports-3.14.22-1/backport-include/linux/dynamic_debug.h:5,
                 from include/linux/kernel.h:20,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/dynamic_debug.h:80:1: warning: this is the location of the previous definition
In file included from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/kernel.h:242: error: redefinition of ‘struct backport_va_format’
In file included from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/kernel.h:441:1: warning: "printk_once" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/printk.h:45:1: warning: this is the location of the previous definition
include/linux/kernel.h:478: error: redefinition of ‘backport_no_printk’
/root/backports-3.14.22-1/backport-include/linux/printk.h:97: note: previous definition of ‘backport_no_printk’ was here
In file included from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/kernel.h:670:1: warning: "printk_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/printk.h:106:1: warning: this is the location of the previous definition
In file included from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/kernel.h:694:1: warning: "pr_warn_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/printk.h:142:1: warning: this is the location of the previous definition
In file included from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/kernel.h:705:1: warning: "pr_debug_ratelimited" redefined
In file included from include/linux/kernel.h:18,
                 from /root/backports-3.14.22-1/backport-include/linux/kernel.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/percpu.h:45,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/current.h:5,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:15,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/printk.h:172:1: warning: this is the location of the previous definition
In file included from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:31,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/err.h:7:1: warning: "PTR_RET" redefined
In file included from /root/backports-3.14.22-1/backport-include/linux/err.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/processor.h:31,
                 from include/linux/prefetch.h:14,
                 from include/linux/list.h:7,
                 from /root/backports-3.14.22-1/backport-include/linux/list.h:3,
                 from include/linux/module.h:9,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/err.h:64:1: warning: this is the location of the previous definition
In file included from include/linux/pm.h:29,
                 from /root/backports-3.14.22-1/backport-include/linux/pm.h:3,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/apic.h:6,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/smp.h:13,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/mmzone_64.h:12,
                 from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/mmzone.h:4,
                 from include/linux/mmzone.h:850,
                 from include/linux/gfp.h:4,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
/root/backports-3.14.22-1/backport-include/linux/completion.h:14: error: redefinition of ‘reinit_completion’
include/linux/completion.h:86: note: previous definition of ‘reinit_completion’ was here
In file included from /usr/src/kernels/2.6.32-696.3.1.el6.x86_64/arch/x86/include/asm/local.h:4,
                 from include/linux/module.h:20,
                 from /root/backports-3.14.22-1/backport-include/linux/module.h:3,
                 from /root/backports-3.14.22-1/compat/main.c:1:
include/linux/percpu.h:713: error: ‘printk_func_t’ undeclared here (not in a function)
include/linux/percpu.h:713: warning: type defaults to ‘int’ in declaration of ‘per_cpu__printk_func’
In file included from include/linux/mmc/sdio_func.h:15,
                 from /root/backports-3.14.22-1/backport-include/linux/mmc/sdio_func.h:4,
                 from /root/backports-3.14.22-1/compat/compat-2.6.34.h:8,
                 from /root/backports-3.14.22-1/compat/main.c:5:
/root/backports-3.14.22-1/backport-include/linux/device.h:196:1: warning: "DEVICE_ATTR_RO" redefined
In file included from /root/backports-3.14.22-1/backport-include/linux/device.h:4,
                 from include/linux/mmc/sdio_func.h:15,
                 from /root/backports-3.14.22-1/backport-include/linux/mmc/sdio_func.h:4,
                 from /root/backports-3.14.22-1/compat/compat-2.6.34.h:8,
                 from /root/backports-3.14.22-1/compat/main.c:5:
include/linux/device.h:338:1: warning: this is the location of the previous definition
In file included from include/linux/mmc/sdio_func.h:15,
                 from /root/backports-3.14.22-1/backport-include/linux/mmc/sdio_func.h:4,
                 from /root/backports-3.14.22-1/compat/compat-2.6.34.h:8,
                 from /root/backports-3.14.22-1/compat/main.c:5:
/root/backports-3.14.22-1/backport-include/linux/device.h:198:1: warning: "DEVICE_ATTR_RW" redefined
In file included from /root/backports-3.14.22-1/backport-include/linux/device.h:4,
                 from include/linux/mmc/sdio_func.h:15,
                 from /root/backports-3.14.22-1/backport-include/linux/mmc/sdio_func.h:4,
                 from /root/backports-3.14.22-1/compat/compat-2.6.34.h:8,
                 from /root/backports-3.14.22-1/compat/main.c:5:
include/linux/device.h:334:1: warning: this is the location of the previous definition
In file included from /root/backports-3.14.22-1/compat/compat-2.6.34.h:8,
                 from /root/backports-3.14.22-1/compat/main.c:5:
/root/backports-3.14.22-1/backport-include/linux/mmc/sdio_func.h:21: error: redefinition of typedef ‘mmc_pm_flag_t’
include/linux/mmc/pm.h:25: note: previous declaration of ‘mmc_pm_flag_t’ was here
make[6]: *** [/root/backports-3.14.22-1/compat/main.o] Error 1
make[5]: *** [/root/backports-3.14.22-1/compat] Error 2
make[4]: *** [_module_/root/backports-3.14.22-1] Error 2
make[3]: *** [modules] Error 2
make[2]: *** [modules] Error 2
make[1]: *** [modules] Error 2
make: *** [default] Error 2
Comment 4 Jordan Wine 2017-06-20 13:39:08 UTC 
So basically it looks like backports 3.14 was not configured to support all the kernel updates that RHEL backported into kernel 2.6.32 when they released 2.6.32-573. Many of the backports header files would check the kernel version and if less than X.X would define a function or variable that RHEL already defines.

To solve this, I wrapped these instances in the backports header files in 
#if (RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(6,7))
#endif /* RHEL_RELEASE_CODE < 6.7 */ 
and the module compiled. This was required on the following files
    backport-include/linux/dynamic_debug.h
    backport-include/linux/printk.h
    backport-include/linux/err.h
    backport-include/linux/device.h
    backport-include/linux/mmc/sdio_fumakenc.h
    backport-include/net/inet_frag.h
    backport-include/linux/in.h
    backport-include/net/ip.h
    backport-include/net/ipv6.h

Also, even after the module compiled, the compat module would re-export symbols already owned by the kernel (same basic issue as with the header files). So i commented out "/* EXPORT_SYMBOL_GPL(platform_device_register_data); */" from compat/compat-2.6.33.c and /* EXPORT_SYMBOL_GPL(get_random_int); */ from compat/backport-3.10.c and after recompiling, the module loaded.
Comment 5 Arend van Spriel 2017-06-21 08:40:27 UTC 
The backports framework has been mostly designed to work with vanilla target kernels. There have been discussions about going through target kernel symbols, but experiments showed tremendous increase in build times. So it was not further pursued. Maybe we can revisit the ideas.
Comment 6 Jordan Wine 2017-06-22 13:19:20 UTC 
Makes complete sense. My application requirements are pretty unique. In the case of RHEL, I'd imagine that very few people would need to use backports on an older build like RHEL 6.7 instead of simply just using a newer RHEL build so it makes absolute sense not to support it directly. If it was feasible though, I could see value in perhaps providing some documentation or notes to jump start those who would like to utilize backports on non-vanilla kernels. How easy that would be or even how useful it would be I'm not sure.
Comment 7 Johannes Berg 2019-11-19 08:57:01 UTC 
Sorry, we have no capacity to deal with all the jungle of old versions you're mentioning. We can barely keep up with the latest backported to 3.something+.
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